Annotations: 8TOH

Cryo-EM structure of monomeric alpha-Klotho

External Resource: Annotation

Domain Annotation: ECOD Classification
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A		e8tohA01	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F:	ECOD (v294.2)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00232	Glycosyl hydrolase family 1 (Glyco_hydro_1)	Glycosyl hydrolase family 1		Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Klotho	hydrolase activity, acting on glycosyl bonds glucosidase activity hydrolase activity, hydrolyzing O-glycosyl compounds hydrolase activity beta-glucosidase activity catalytic activity vitamin binding binding vitamin D binding steroid binding lipid binding small molecule binding protein binding signaling receptor binding hydrolase activity, acting on glycosyl bonds glucosidase activity hydrolase activity, hydrolyzing O-glycosyl compounds hydrolase activity beta-glucosidase activity catalytic activity vitamin binding binding vitamin D binding steroid binding lipid binding small molecule binding protein binding signaling receptor binding fibroblast growth factor receptor binding growth factor receptor binding beta-glucuronidase activity glucuronidase activity fibroblast growth factor binding growth factor binding hormone activity molecular function activator activity molecular function regulator activity signaling receptor regulator activity receptor ligand activity signaling receptor activator activity	carbohydrate metabolic process primary metabolic process metabolic process cellular process response to stimulus response to activity response to angiotensin response to hormone response to chemical response to endogenous stimulus response to peptide hormone response to oxygen-containing compound response to nitrogen compound norepinephrine biosynthetic process carbohydrate metabolic process primary metabolic process metabolic process cellular process response to stimulus response to activity response to angiotensin response to hormone response to chemical response to endogenous stimulus response to peptide hormone response to oxygen-containing compound response to nitrogen compound norepinephrine biosynthetic process catechol-containing compound metabolic process norepinephrine metabolic process amine metabolic process biogenic amine biosynthetic process biosynthetic process catecholamine metabolic process amine biosynthetic process phenol-containing compound metabolic process catecholamine biosynthetic process phenol-containing compound biosynthetic process catechol-containing compound biosynthetic process biogenic amine metabolic process multicellular organismal process regulation of developmental process positive regulation of biological process regulation of biomineral tissue development regulation of bone mineralization positive regulation of ossification positive regulation of developmental process multicellular organism development positive regulation of biomineral tissue development ossification anatomical structure development biomineral tissue development regulation of multicellular organismal process developmental process regulation of multicellular organismal development regulation of biological process bone mineralization animal organ development biological regulation tissue development positive regulation of bone mineralization positive regulation of multicellular organismal process regulation of ossification energy derivation by oxidation of organic compounds energy reserve metabolic process generation of precursor metabolites and energy response to fibroblast growth factor cellular response to stimulus positive regulation of cell communication cellular response to growth factor stimulus regulation of cellular process positive regulation of signal transduction signaling regulation of signal transduction cell surface receptor protein tyrosine kinase signaling pathway intracellular signal transduction cell communication positive regulation of response to stimulus cellular response to endogenous stimulus regulation of intracellular signal transduction intracellular signaling cassette signal transduction enzyme-linked receptor protein signaling pathway positive regulation of cellular process regulation of signaling positive regulation of MAPKKK cascade by fibroblast growth factor receptor signaling pathway cell surface receptor signaling pathway positive regulation of MAPK cascade positive regulation of intracellular signal transduction regulation of MAPK cascade regulation of response to stimulus fibroblast growth factor receptor signaling pathway MAPK cascade regulation of cell communication response to growth factor cellular response to fibroblast growth factor stimulus positive regulation of signaling determination of adult lifespan inorganic ion homeostasis chemical homeostasis homeostatic process monoatomic ion homeostasis calcium ion homeostasis monoatomic cation homeostasis response to nutrient levels response to vitamin D response to lipid response to nutrient response to vitamin system process regulation of systemic arterial blood pressure circulatory system process regulation of blood pressure negative regulation of systemic arterial blood pressure regulation of biological quality blood circulation negative regulation of blood pressure	cellular anatomical structure membrane cell periphery apical part of cell plasma membrane plasma membrane region apical plasma membrane extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle vesicle cellular anatomical structure membrane cell periphery apical part of cell plasma membrane plasma membrane region apical plasma membrane extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle vesicle extracellular membrane-bounded organelle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR001360	Glycoside hydrolase family 1	Family
A	IPR033132	Glycosyl hydrolases family 1, N-terminal conserved site	Conserved Site
A	IPR017853	Glycoside hydrolase superfamily	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	: Q9UEF7	hyperphosphatemia hypercalcemia disease osteoporosis calcinosis kidney disease coronary artery disease premature aging syndrome Memory Disorders familial hyperphosphatemic tumoral calcinosis/hyperphosphatemic hyperostosis syndrome arteriosclerosis disorder hyperparathyroidism rickets tumoral calcinosis, hyperphosphatemic, familial, 3 lung cancer autosomal recessive infantile hypercalcemia 1 hyperphosphatemia hypercalcemia disease osteoporosis calcinosis kidney disease coronary artery disease premature aging syndrome Memory Disorders familial hyperphosphatemic tumoral calcinosis/hyperphosphatemic hyperostosis syndrome arteriosclerosis disorder hyperparathyroidism rickets tumoral calcinosis, hyperphosphatemic, familial, 3 lung cancer autosomal recessive infantile hypercalcemia 1 chronic kidney disease nephrolithiasis ductal breast carcinoma in situ skin disease infertility disorder type 2 diabetes mellitus medulloblastoma brain aneurysm colorectal cancer non-small cell lung carcinoma cystic fibrosis pituitary cancer pulmonary emphysema hypophosphatemia invasive ductal breast carcinoma tumoral calcinosis, hyperphosphatemic, familial, 1 learning disability lung adenocarcinoma osteomalacia

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RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.